1. “ 2005 EMS Users Group Meeting”
The Common Information Model (CIM) accepted/implemented Globally- for operations, planning, markets, and throughout the Enterprise
David Becker, EPRI
Presented at the
“ 2005 EMS Users Group Meeting”
Providence, R.I. September 13, 2005

2. History of the Common Information Model (CIM)
Late 1980’s-Early 90’s- Informal meetings of Industry focused on “How to achieve “open system design”
1993-Formation of EPRI led CCAPI Task Force: “ One vendor did not have all solutions for a customer. Need for integration”
Initial Goals of CCAPI:
Provide common information model to facilitate information exchange
Enable use of plug in applications
Protect application investment
Framework for integration of legacy systems

3. The Common Information Model Defines
Power System Resources, Attributes and Relationships
Company
Generator
Control Area
Operates
Controls
Supplies
Energy for
Connects to
Busbar
Provides
Transmission for
Load
Connects to
AC Line
Connects to
Company
Owns

4. ENTERPRISE

5. Important Milestones
9/1996: CIM initially submitted to IEC; CIM 10 final version accepted for standard in First major CIM Installation 1998
Component technology emerged in late 1990’s . CCAPI calls them Component Interface Specs (CIS). Key to facilitating integration in a distributed environment
Generic Interface Design (GID) initial design submitted to IEC 12/2001 after 2 yrs technical debate and design
SW developers create components w/o concern for underlying infrastructure
GID guides standard API for an application to exchange/access data

6. CIM Packages Domain Core Topology Energy Scheduling Reservation Core2
Financial
Generation
Wires
LoadModel
Meas
Outage
Protection
SCADA
Assets
Documen- tation
Consumer
OAG Messages
ERP Support OK

7. Concepts: Generalization/Inheritance
Naming
Naming
( from Core)
( from Core)
Breaker: Specialization of Switch
Switch: Specialization of Conducting Equipment
ConductingEquipment: Specialization of PowerSystem Resource
PowerSystemResource
PowerSystemResource
(from Core)
(from Core)
ConductingEquipment
ConductingEquipment
PowerTransformer
PowerTransformer
(from Core)
(from Core)
Switch
Switch
Breaker

8. Middleware (Integration Bus) CIM 10 Distribution Automation
ENTERPRISE CAPABILITY Standards Position A Utility To Capitalize On Best Fitting Off-The-Shelf Products
Customer
Information
PI Historian
Load Forecaster
Dynamic Circuit Ratings
EMS
Control
Center
GID
GID
GID
Middleware (Integration Bus) CIM 10
Distribution
Automation
Engineering
GID
GID
GID
GID
GID
Transmission
Grid
Facilities
Management
Planning
= Standard Interface Specifications

9. Control Center Project
PSS/E
PSS/O (offline)
CIM
EMS
GID
GID
GID
GID Server
Power System
Models
Included in “Option C”
ICCP
GID
GID
GID
GID
UIB
GID
GID
GID
Power
Models PI
UIB PI Adapter
GID
GID
GID
Archive
VDW/Substation
Control Center
Option C - PTLoad/Substation
Existing - Future
Module
Database
CIM
Not included in “Option C”

10. LIPA Architecture(simplified)
EPRI
PTLoad
Desktop
PSS/E
PSS/O (offline)
ODMS
EMS
GID
GID
GID
GID Server
Equip & power
Power System
Models
Results
Results
ICCP
GID
GID
GID
GID
UIB
GID
GID
GID
Equipment
Models
Power
Models
Power
Models PI
GID
CIM
Virtual Data
Warehouse
GiA
UIB PI Adapter
GID
Archive
AMS/WMS
(Maximo)
GID
Module
Database
CIM
OMS (TOTS)
GID
ODBC
...
MMW
ODBC
GID
VDW/Substation
Control Center
Option C - PTLoad/Substation
Existing - Future
Others
GID
Analysis
Applications

11. Control Center Application Program Interface (CCAPI ) as an Integration Framework
Legacy
System
Alarm
Topology
Network
PI-Historian
Accounting/
Generation
Processor
Processor
Applications
Settlement
Control
Legacy
SCADA
SCADA
Network
System
Programs
Programs
CIM Server
Programs
Programs
Programs
Legacy
Public
Public
Public
Public
Public
Public
Wrapper
Data
Data
Data
Data
Data
Data
This “bus”can be spread across multiple entities
Component Execution System
and Component Adapters (e.g., Integration Bus)
User
Distribution
PCs
ICCP
Management
Public
Public
Data
Systems
Data
Network
Component
Programs
Programs
Interface
ICCP

12. ENTERPRISE

13. Scope of Markets Project
Inter-ISO/RTO Messaging
Intra-ISO/RTO Messaging
Generators
RTO A
RTO A
ISO B
MIS
Settlement
Marketers
ISO D
RTO C
SCUC
SCED
Loads
CIM extensions in scope for CME
XML information exchange model and terms database – message standards to be developed as part of RTO/ISO Data Initiative
Market, Load, Generation Participants CIM extension and information exchange model – Other Initiatives and/or Future Phase(s)

14. CIM XML Interoperability Tests
EPRI has sponsored six interoperability tests based on the CIM XML standards:
Six interoperability tests successfully completed exchanging real-world large scale models (12,000 bus) and several sample models (40 to 100 bus)
December 2000: Orlando, Florida
April 2001: Las Vegas, Nevada
September 2001: Monterey, California
July 2002: San Francisco, California
November 2003: Cleveland, Ohio
July 2004: Folsom,California
Validated the use and acceptance of this standard by suppliers who provide products to the electric utility industry
Test reports available from EPRI

15. INTEROPERABILITY TESTS
Interoperability Tests very important
IOP #7 Sept 27,28,29,
Vendors: ABB,Areva,EDF,
Siemens PTI,Siemens,SISCO

16. CIM Status and Access Information
Survey ( 2 years old) shows over 47 CIM installations in US and over 55 applications delivered. New survey to be done in 2005.( How do you count rabbits?) USA started 2+ years ahead of other countries
Globally accepted now. Known implementations in process or done in Belgium, Brazil, China, France, Ireland, Jordan, Russia, Slovenia, South Africa, Spain, others(?)

17. Names of people to contact
David Becker, EPRI
Terry Saxton, Xtensible Solutions
For general assistance:
Angelica Kamau, EPRI

18. ENTERPRISE

19. Additional Slides for your Info

20. CIM Status and Access Information
CIM exists as ROSE model and IEC standard (MS Word)
Complete CIM (61968, 61970, and Market Operations packages in UML) available on IEC CIM User Web site (
Also available for download
Current CIM model (cim10_ mdl)
RDF Schema Version for CIM Version 10
XML Message Schemas for messages
EPRI published reports on Control Center Application Program Interface (CCAPI)
Site includes CIM 10,IOP’s #1-6, CME reports downloadable